<template>
  <div>
      <!-- 横向滑动的title栏 -->
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a :class="['mui-control-item', item.id === 0 ? 'mui-active' :'']" v-for="(item,index) in titleList" :key="index" @tap="getphotolist(item.id)">
                        {{item.title}}
                    </a>
                </div>
            </div>
		</div>
        <!-- 图片列表 -->
        <ul class="photo-list">
            <router-link v-for="(item,index) in photoList" :key="index" :to="'/home/photoinfo/'+item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{ item.title }}</h1>
                    <div class="info-body">{{ item.zhaiyao }}</div>
                </div>
            </router-link>
        </ul>
  </div>
</template>

<script>
// 导入mui的js
import mui from "../../lib/mui/js/mui.min.js";

export default {
  data() {
    return {
      titleList: [],
      photoList:[]
    };
  },
  created() {
    this.getTitle();
    this.getphotolist(0)
  },
  mounted() {
    // 滑动初始化
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  },
  methods: {
    getTitle() {
      this.$http.get("api/getimgcategory").then(result => {
        // console.log(result)
        if (result.status === 200 && result.data.status === 0) {
          // 手动拼接出一个最完整的 分类列表
          result.data.message.unshift({ title: "全部", id: 0 });
          this.titleList = result.data.message;
        } else {
          Toast("请求失败！");
        }
      });
    },
    getphotolist(cateId){
        this.$http.get('api/getimages/'+cateId).then(result=>{
            // console.log(result)
            if(result.status === 200 && result.data.status === 0){
                this.photoList = result.data.message
            }
        })
    }
  }
};
</script>

<style lang="less" scoped>
// 去除滑动时候页面报警告
* {
  touch-action: pan-y;
}

.photo-list {
  list-style: none;
  margin: 0;
  padding: 10px;
  padding-bottom: 0;
  li {
    background-color: #ccc;
    text-align: center;
    margin-bottom: 10px;
    box-shadow: 0 0 9px #999;
    position: relative;
    img {
      width: 100%;
      vertical-align: middle;
    }
    img[lazy="loading"] {
      width: 40px;
      height: 300px;
      margin: auto;
    }

    .info {
      color: white;
      text-align: left;
      position: absolute;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.4);
      max-height: 84px;
      .info-title {
        font-size: 14px;
      }
      .info-body {
        font-size: 13px;
      }
    }
  }
}
</style>


